An eBay seller is making this remarkable 1919 Cincinnati Reds championship pennant available. He has an interesting story to tell about what he dubs "the Holy Grail" of baseball pennants; how it was stitched together and the history behind it.
It's rare to see this high end baseball ephemera outside of a specialty auction, especially with an opening bid of only $9. Here again, the seller has something to say on that subject as well.
Certainly, well worth a look-see on the old ephemera blog.